1 /* 2 * Copyright 2023 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 26 #include "amdgpu_dm_replay.h" 27 #include "dc.h" 28 #include "dm_helpers.h" 29 #include "amdgpu_dm.h" 30 #include "modules/power/power_helpers.h" 31 #include "dmub/inc/dmub_cmd.h" 32 #include "dc/inc/link.h" 33 34 /* 35 * link_supports_replay() - check if the link supports replay 36 * @link: link 37 * @aconnector: aconnector 38 * 39 */ 40 static bool link_supports_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector) 41 { 42 struct dm_connector_state *state = to_dm_connector_state(aconnector->base.state); 43 struct dpcd_caps *dpcd_caps = &link->dpcd_caps; 44 struct adaptive_sync_caps *as_caps = &link->dpcd_caps.adaptive_sync_caps; 45 46 if (!state->freesync_capable) 47 return false; 48 49 if (!aconnector->vsdb_info.replay_mode) 50 return false; 51 52 // Check the eDP version 53 if (dpcd_caps->edp_rev < EDP_REVISION_13) 54 return false; 55 56 if (!dpcd_caps->alpm_caps.bits.AUX_WAKE_ALPM_CAP) 57 return false; 58 59 // Check adaptive sync support cap 60 if (!as_caps->dp_adap_sync_caps.bits.ADAPTIVE_SYNC_SDP_SUPPORT) 61 return false; 62 63 return true; 64 } 65 66 /* 67 * amdgpu_dm_setup_replay() - setup replay configuration 68 * @link: link 69 * @aconnector: aconnector 70 * 71 */ 72 bool amdgpu_dm_setup_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector) 73 { 74 struct replay_config pr_config; 75 union replay_debug_flags *debug_flags = NULL; 76 77 // For eDP, if Replay is supported, return true to skip checks 78 if (link->replay_settings.config.replay_supported) 79 return true; 80 81 if (!dc_is_embedded_signal(link->connector_signal)) 82 return false; 83 84 if (link->panel_config.psr.disallow_replay) 85 return false; 86 87 if (!link_supports_replay(link, aconnector)) 88 return false; 89 90 // Mark Replay is supported in link and update related attributes 91 pr_config.replay_supported = true; 92 pr_config.replay_power_opt_supported = 0; 93 pr_config.replay_enable_option |= pr_enable_option_static_screen; 94 pr_config.replay_timing_sync_supported = aconnector->max_vfreq >= 2 * aconnector->min_vfreq ? true : false; 95 96 if (!pr_config.replay_timing_sync_supported) 97 pr_config.replay_enable_option &= ~pr_enable_option_general_ui; 98 99 debug_flags = (union replay_debug_flags *)&pr_config.debug_flags; 100 debug_flags->u32All = 0; 101 debug_flags->bitfields.visual_confirm = 102 link->ctx->dc->debug.visual_confirm == VISUAL_CONFIRM_REPLAY ? true : false; 103 104 link->replay_settings.replay_feature_enabled = true; 105 106 init_replay_config(link, &pr_config); 107 108 return true; 109 } 110 111 112 /* 113 * amdgpu_dm_replay_enable() - enable replay f/w 114 * @stream: stream state 115 * 116 * Return: true if success 117 */ 118 bool amdgpu_dm_replay_enable(struct dc_stream_state *stream, bool wait) 119 { 120 uint64_t state; 121 unsigned int retry_count; 122 bool replay_active = true; 123 const unsigned int max_retry = 1000; 124 bool force_static = true; 125 struct dc_link *link = NULL; 126 127 128 if (stream == NULL) 129 return false; 130 131 link = stream->link; 132 133 if (link == NULL) 134 return false; 135 136 link->dc->link_srv->edp_setup_replay(link, stream); 137 138 link->dc->link_srv->edp_set_replay_allow_active(link, NULL, false, false, NULL); 139 140 link->dc->link_srv->edp_set_replay_allow_active(link, &replay_active, false, true, NULL); 141 142 if (wait == true) { 143 144 for (retry_count = 0; retry_count <= max_retry; retry_count++) { 145 dc_link_get_replay_state(link, &state); 146 if (replay_active) { 147 if (state != REPLAY_STATE_0 && 148 (!force_static || state == REPLAY_STATE_3)) 149 break; 150 } else { 151 if (state == REPLAY_STATE_0) 152 break; 153 } 154 udelay(500); 155 } 156 157 /* assert if max retry hit */ 158 if (retry_count >= max_retry) 159 ASSERT(0); 160 } else { 161 /* To-do: Add trace log */ 162 } 163 164 return true; 165 } 166 167 /* 168 * amdgpu_dm_replay_disable() - disable replay f/w 169 * @stream: stream state 170 * 171 * Return: true if success 172 */ 173 bool amdgpu_dm_replay_disable(struct dc_stream_state *stream) 174 { 175 176 if (stream->link) { 177 DRM_DEBUG_DRIVER("Disabling replay...\n"); 178 stream->link->dc->link_srv->edp_set_replay_allow_active(stream->link, NULL, false, false, NULL); 179 return true; 180 } 181 182 return false; 183 } 184